I was always wondering what to wear when I become an Aes Sedai. What male Aes Sedai would wear... And I thought of scarfs, or jackets that has the Flame on the back. But the long hair would hide the Flame, so that's not very optional for me. :scratch
Scarf would be cool, maybe. Or the Flame of Tar Valon having the colour of the Ajah the person chose, being tattooed on the person, maybe on top of their right hand or something.